Home / 19,932.60-29,879.70-15,487.80

Finding the Fourth Proportional to 19,932.60, 29,879.70 and 15,487.80

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Solution

The fourth proportional to 19,932.60, 29,879.70 and 15,487.80 is: 23,216.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,932.60 : 29,879.70 = 15,487.80 : x
  2. Step 2: Convert to fraction form
    19,932.60/29,879.70 = 15,487.80/x
  3. Step 3: Cross multiply
    19,932.60x = 29,879.70 × 15,487.80
  4. Step 4: Simplify right side
    19,932.60x = 462,770,817.66
  5. Step 5: Solve for x
    x = 462,770,817.66/19,932.60
  6. Step 6: Final answer
    x = 23,216.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.